Feng, Zhuo http://orcid.org/0000-0001-9635-1144
Wang, Jun
Rößler, Ronny http://orcid.org/0000-0002-9692-2960
Ślipiński, Adam
Labandeira, Conrad
Article History
Received: 6 February 2017
Accepted: 21 July 2017
First Online: 15 September 2017
Competing interests
: The authors declare no competing financial interests.